xml-emitter
xml-emitter simply emits XML, with some complexity for handling indentation. It can be used to produce all sorts of useful XML output; it has an RSS 2.0 emitter built in.
$ area51 add xml-emitterコピー使い方
;; area51 add で .asd が自動更新されます。
;; コード内でパッケージを使用:
(in-package :my-project)
(xml-emitter:some-function ...)